Diff of the two buildlogs:

--
--- b1/build.log	2025-02-18 11:33:18.803651728 +0000
+++ b2/build.log	2025-02-18 11:35:19.526234890 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Feb 17 23:30:52 -12 2025
-I: pbuilder-time-stamp: 1739878252
+I: Current time: Tue Mar 24 07:56:20 +14 2026
+I: pbuilder-time-stamp: 1774288580
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying version.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3847537/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos15-amd64.
+I: Changing host+domainname to test build reproducibility
+I: Adding a custom variable just for the fun of it...
+I: Changing /bin/sh to bash
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Mar 23 17:56 /bin/sh -> /bin/bash
+I: Setting pbuilder2's login shell to /bin/bash
+I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build/reproducible-path'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
-  BUILD_ARCH='amd64'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  BASH=/bin/sh
+  BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath
+  BASH_ALIASES=()
+  BASH_ARGC=()
+  BASH_ARGV=()
+  BASH_CMDS=()
+  BASH_LINENO=([0]="12" [1]="0")
+  BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.
+  BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment")
+  BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="x86_64-pc-linux-gnu")
+  BASH_VERSION='5.2.37(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=amd64
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='c0edd90ed9e04144909c5e254c724e2e'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  MAIL='/var/mail/root'
-  OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
-  PBCURRENTCOMMANDLINEOPERATION='build'
-  PBUILDER_OPERATION='build'
-  PBUILDER_PKGDATADIR='/usr/share/pbuilder'
-  PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
-  PBUILDER_SYSCONFDIR='/etc'
-  PPID='3847537'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=a34a5463104349758cb71ce98bafb11b
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-pc-linux-gnu
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnu
+  PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path
+  PBCURRENTCOMMANDLINEOPERATION=build
+  PBUILDER_OPERATION=build
+  PBUILDER_PKGDATADIR=/usr/share/pbuilder
+  PBUILDER_PKGLIBDIR=/usr/lib/pbuilder
+  PBUILDER_SYSCONFDIR=/etc
+  PIPESTATUS=([0]="0")
+  POSIXLY_CORRECT=y
+  PPID=3914490
   PS4='+ '
-  PWD='/'
-  SHELL='/bin/bash'
-  SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.PWZeFj2G/pbuilderrc_K70h --distribution trixie --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.PWZeFj2G/b1 --logfile b1/build.log xmldiff_2.6.3-0.2.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://46.16.76.132:3128'
+  PWD=/
+  SHELL=/bin/bash
+  SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix
+  SHLVL=3
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.PWZeFj2G/pbuilderrc_wL19 --distribution trixie --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.PWZeFj2G/b2 --logfile b2/build.log xmldiff_2.6.3-0.2.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://213.165.73.152:3128
 I: uname -a
-  Linux ionos11-amd64 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.12.9+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.9-1~bpo12+1 (2025-01-19) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/3847537/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -207,7 +239,7 @@
 Get: 88 http://deb.debian.org/debian trixie/main amd64 sphinx-common all 8.1.3-4 [616 kB]
 Get: 89 http://deb.debian.org/debian trixie/main amd64 python3-sphinx all 8.1.3-4 [468 kB]
 Get: 90 http://deb.debian.org/debian trixie/main amd64 python3-sphinx-argparse all 0.5.2-1 [59.6 kB]
-Fetched 42.9 MB in 7s (6583 kB/s)
+Fetched 42.9 MB in 8s (5431 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:amd64.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19809 files and directories currently installed.)
@@ -508,8 +540,8 @@
 Setting up tzdata (2024b-6) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Tue Feb 18 11:31:56 UTC 2025.
-Universal Time is now:  Tue Feb 18 11:31:56 UTC 2025.
+Local time is now:      Mon Mar 23 17:57:43 UTC 2026.
+Universal Time is now:  Mon Mar 23 17:57:43 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20220109.1) ...
@@ -604,7 +636,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/xmldiff-2.6.3/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../xmldiff_2.6.3-0.2_source.changes
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/xmldiff-2.6.3/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../xmldiff_2.6.3-0.2_source.changes
 dpkg-buildpackage: info: source package xmldiff
 dpkg-buildpackage: info: source version 2.6.3-0.2
 dpkg-buildpackage: info: source distribution unstable
@@ -668,14 +704,14 @@
 running build
 running build_py
 creating /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
-copying ./xmldiff/__init__.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
 copying ./xmldiff/formatting.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
-copying ./xmldiff/actions.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
-copying ./xmldiff/diff_match_patch.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
 copying ./xmldiff/main.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
-copying ./xmldiff/diff.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
-copying ./xmldiff/utils.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
 copying ./xmldiff/patch.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
+copying ./xmldiff/utils.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
+copying ./xmldiff/diff.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
+copying ./xmldiff/diff_match_patch.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
+copying ./xmldiff/actions.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
+copying ./xmldiff/__init__.py -> /build/reproducible-path/xmldiff-2.6.3/.pybuild/cpython3_3.13/build/xmldiff
 running egg_info
 creating xmldiff.egg-info
 writing xmldiff.egg-info/PKG-INFO
@@ -722,9 +758,9 @@
 preparing documents... done
 copying assets... 
 copying static files... 
+Writing evaluated template result to /build/reproducible-path/xmldiff-2.6.3/docs/build/html/_static/documentation_options.js
 Writing evaluated template result to /build/reproducible-path/xmldiff-2.6.3/docs/build/html/_static/language_data.js
 Writing evaluated template result to /build/reproducible-path/xmldiff-2.6.3/docs/build/html/_static/basic.css
-Writing evaluated template result to /build/reproducible-path/xmldiff-2.6.3/docs/build/html/_static/documentation_options.js
 Writing evaluated template result to /build/reproducible-path/xmldiff-2.6.3/docs/build/html/_static/alabaster.css
 copying static files: done
 copying extra files... 
@@ -873,7 +909,7 @@
 test_reverse_post_order (tests.test_utils.TraverseTests.test_reverse_post_order) ... ok
 
 ----------------------------------------------------------------------
-Ran 120 tests in 1.237s
+Ran 120 tests in 0.574s
 
 OK
    create-stamp debian/debhelper-build-stamp
@@ -909,14 +945,14 @@
 running build
 running build_py
 creating build/lib/xmldiff
-copying ./xmldiff/__init__.py -> build/lib/xmldiff
 copying ./xmldiff/formatting.py -> build/lib/xmldiff
-copying ./xmldiff/actions.py -> build/lib/xmldiff
-copying ./xmldiff/diff_match_patch.py -> build/lib/xmldiff
 copying ./xmldiff/main.py -> build/lib/xmldiff
-copying ./xmldiff/diff.py -> build/lib/xmldiff
-copying ./xmldiff/utils.py -> build/lib/xmldiff
 copying ./xmldiff/patch.py -> build/lib/xmldiff
+copying ./xmldiff/utils.py -> build/lib/xmldiff
+copying ./xmldiff/diff.py -> build/lib/xmldiff
+copying ./xmldiff/diff_match_patch.py -> build/lib/xmldiff
+copying ./xmldiff/actions.py -> build/lib/xmldiff
+copying ./xmldiff/__init__.py -> build/lib/xmldiff
 running egg_info
 writing xmldiff.egg-info/PKG-INFO
 writing dependency_links to xmldiff.egg-info/dependency_links.txt
@@ -926,37 +962,37 @@
 reading manifest file 'xmldiff.egg-info/SOURCES.txt'
 reading manifest template 'MANIFEST.in'
 adding license file 'LICENSE.txt'
-adding file referenced by config 'README.rst'
 adding file referenced by config 'CHANGES.rst'
+adding file referenced by config 'README.rst'
 writing manifest file 'xmldiff.egg-info/SOURCES.txt'
 running install_lib
 creating debian/xmldiff/usr/lib/python3/dist-packages
 creating debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
-copying build/lib/xmldiff/__init__.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
 copying build/lib/xmldiff/formatting.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
-copying build/lib/xmldiff/actions.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
-copying build/lib/xmldiff/diff_match_patch.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
 copying build/lib/xmldiff/main.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
-copying build/lib/xmldiff/diff.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
-copying build/lib/xmldiff/utils.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
 copying build/lib/xmldiff/patch.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
-byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/__init__.py to __init__.cpython-313.pyc
+copying build/lib/xmldiff/utils.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
+copying build/lib/xmldiff/diff.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
+copying build/lib/xmldiff/diff_match_patch.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
+copying build/lib/xmldiff/actions.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
+copying build/lib/xmldiff/__init__.py -> debian/xmldiff/usr/lib/python3/dist-packages/xmldiff
 byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/formatting.py to formatting.cpython-313.pyc
-byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/actions.py to actions.cpython-313.pyc
-byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/diff_match_patch.py to diff_match_patch.cpython-313.pyc
 byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/main.py to main.cpython-313.pyc
-byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/diff.py to diff.cpython-313.pyc
-byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/utils.py to utils.cpython-313.pyc
 byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/patch.py to patch.cpython-313.pyc
+byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/utils.py to utils.cpython-313.pyc
+byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/diff.py to diff.cpython-313.pyc
+byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/diff_match_patch.py to diff_match_patch.cpython-313.pyc
+byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/actions.py to actions.cpython-313.pyc
+byte-compiling debian/xmldiff/usr/lib/python3/dist-packages/xmldiff/__init__.py to __init__.cpython-313.pyc
 running install_egg_info
 Copying xmldiff.egg-info to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info
-Copying dependency_links.txt to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/dependency_links.txt
 Copying requires.txt to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/requires.txt
+Skipping SOURCES.txt
 Copying PKG-INFO to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/PKG-INFO
-Copying top_level.txt to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/top_level.txt
 Copying zip-safe to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/zip-safe
 Copying entry_points.txt to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/entry_points.txt
-Skipping SOURCES.txt
+Copying dependency_links.txt to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/dependency_links.txt
+Copying top_level.txt to debian/xmldiff/usr/lib/python3/dist-packages/xmldiff-2.6.3.egg-info/top_level.txt
 running install_scripts
 Installing xmldiff script to debian/xmldiff/usr/bin
 changing mode of debian/xmldiff/usr/bin/xmldiff to 755
@@ -999,12 +1035,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: not including original source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3914490/tmp/hooks/B01_cleanup finished
 I: unmounting dev/ptmx filesystem
 I: unmounting dev/pts filesystem
 I: unmounting dev/shm filesystem
 I: unmounting proc filesystem
 I: unmounting sys filesystem
 I: cleaning the build env 
-I: removing directory /srv/workspace/pbuilder/3847537 and its subdirectories
-I: Current time: Mon Feb 17 23:33:18 -12 2025
-I: pbuilder-time-stamp: 1739878398
+I: removing directory /srv/workspace/pbuilder/3914490 and its subdirectories
+I: Current time: Tue Mar 24 07:58:18 +14 2026
+I: pbuilder-time-stamp: 1774288698